US1573516A - Wire binding or tying apparatus - Google Patents

Description

Feb. 16 1926.

E. A. INGOLD WIRE BINDING OR TYING APPARATUS Filed May 5, 1924 M roR.

3o the present invention 'is to enablebinding Patented Feb. 16, 1926.

..UNITED STATES i v ,"1,573,51a

to w- ERNEST ALBERrINGoLn, -oF Lennon; nnG Ani), ASSIGNQR ,ro' tmnssnsj w. ac. PANTYIN, or'tonnolv, ENGLAND. i

' wmn BINDING on rYINe APPAR Q 'Application filed May 5,1192%. serialit'o; 'f(11,'269.

T 0 all whom cit -may concern: H Be it known that I, ERNEST ALBERT "IN- COLD, a subject of the Kingof Great Britain, residing in -London, vEngland, have invented certain new and useful Improve: ments in Wire Binding or Tying Apparatus, of which the following is a. specification. 3 a i i v This invention relates to apparatus for binding or tying wooden or other boxes,

' bales or the like with hoops of wire, the

ends of which are twisted together by causlng themto overlap and grlpplng the overlap with a rotary twrsting device by means of which the two wires are twisted together on either side of the grip.

Such an apparatus is described by the present applicant in United States Pate11t1N0.i1,486,396.

Hitherto one end of the wiregha-s been gripped fixedly by ineansofa pair of gripping jaws or clips so that the distance between that gripping. point and the adjacent twisting; pinion should there be more than one twisting pinion was invariable during the twisting-operation. Asthis part of the wire tends to shorten owing to the twist imposed upon it, unless the wire used was of a comparatively. soft and extensible material breakages ofthe'wire at this point were common, and the principal object of wires of hard and comparatively, inexten sible steel or iron to be used. Accordingly, by the present invention, the gripping aws or clips whereby the fixed end-of the WllO is secured are so mounted that ata predetermined phase of the twistingoperation they permit the point of g'rip,fand

with it the wire, to move inwardly towards the twisting pinion sufliciently to avoid any tendency of the wire to'be broken.

1 According to the present invention the wire is gripped between a normally fixed clip and a pivoted clip preferably having an eccentric engaging edge which is also preferably serrated,- and when the wire is placed in the correct position prior to twisting it is gripped by turning the pivoted clip about its pivot by hand. The other clip is mounted to slide outwardly away from the wire and its fellow clip, but is normally held up to its work by means of a stop which, at, a predetermined phase of the twisting operation, is displaced so as to permit the sliding clip to yield and there by permit the wire,and with it the pivbtej'd clip," to be drawn forwards towards {the twisting pinion. -'A blade spring operating upon the sliding "clip serves torestore it to its normal position. I j 1 'The invention is illustrated in the .ac-

companying drawings, wherein Figzl isfla.

No. 1,486,896, in which the overlapping parts of the loop of wire passed arounda package' are twisted together by meansvo'f two oppositely rotating twistlng P11110118; F g.

2 is a section of the same .on line 22 of 7 Fig. 1; Fig. ,3 a section on line 33 of Fig. 2; and Figs 4 and 5 aresectional plans on an enlarged scale of the gripping members in two different positions.

As shown in these drawings A represents that end of the wire which has hitherto been gripped 'fixedly by means'of a pair of gripping jaws, while B is the other end of the wirewhich, as hitherto,.is fixed in a-gripping device C which is movable longi- '-Accordingto the present inventionthe end A of the wire isgripped between a normally fixed clip'D and a pivoted clip tudinally. so, as to tension the loop of wire around the package.

E, one or both of these beingpreferably provided with serrated edges which, in the mounted upon it a bar I which normally rests upon a positioning stop J and 1s acted upon by a cam K carried by one of the driving shafts K of the twisting pinions, and

the free end of this bar abuts against anadjustably secured to the arresting stop L frame. I.

The cam K comes into action at-a predetermined point of the twisting operation to lift the bar I and thereby establish a clearance between the end of thebar and the arresting stop L. This permits the lever II to turn upon its fulcrum and thereby, under the tension of the wire which is being twisted, enables the slidably mounted clip D to be displaced outwardly against the action of a suitable spring, as for example a blade spring F acting upon the rear end of the slide F. 7

Initially, i. e. before the twisting operation begins, the end A of the wire is clipped as shown in Fig. 4c and as, during twisting, that part of the wire between the clips I), E and the adjacent twisting pinion tends to shorten, the pull upon the wire forces the clip D rearwards and at the same time turns the clip E upon its pivot E until finally the parts assume the position shown in Fig. 5.

As shown in Fig. 2, the lower side of the bar I is notched as indicated at I so that the lift of the bar I will cease when the cam K comes into register with this notch. An auxiliary return spring I acting upon the pivoted bar I and tensioned by the lifting of the latter ensures the bar being restored to its normal position against the positioning stop J when the pivoted clip E is displaced manually or automatically to release the cutoff end of the wire.

To allow for wires of different diameters to be used the pivoted clip E, or alternatively the normally fixed clip D, is so mounted that its distance from the wire and from its cooperating clip can be adjusted as desired. As shown in the drawings the normally fixed clip D is slotted to permit of its longitudinal adjustment on the slide F, a grub-screw through the end of the latter determining the position of the clip with respect to the slide and, in conjunction with the screws passing through the slot holes and screwed into the slide, holding the clip in position.

Having thus described the nature of the said invention and the best means I know of carrying the same into practical eitect, I claim 1. In an apparatus for twisting together the overlapping ends of a loop of wire encircling a package, a gripping device for securing one end of the wire during the twisting operation comprising a pivotally movable clip, a transversely movable clip cooperating therewith to hold the wire, a stop normally preventing transverse movement of the latter'clip, and means operating to withdraw the stop at a predetermined phase of the twisting operation.

2.'An apparatus according to claim 1 said stop comprising a lever pivoted upon the apparatus frame, a bar pivoted upon said lever and an arresting stop secure-d upon the apparatus frame and cooperating with said bar to prevent movement of the pivot-ed lever.

3. In an apparatus for twisting together the overlapping ends of a loop of wire encircling a package, a gripping device for securing one end of the wire during the twisting operation comprising a pivotally movable clip, a transversely movable clip cooperatingtherewith to hold the wire, a stop comprising a lever pivoted upon the apparatus frame, a bar pivoted upon said lever, an arresting stop secured upon the apparatus frame-cooperating with said bar to prevent movement of the pivoted lever and means for displacing said pivoted bar from engagement with said arresting stop at a predetermined point in the twisting operation, said means comprising a cam carried by one of the driving shafts.

l. In an apparatus for twisting together the overlapping ends of a loop of wire encircling a package, a gripping device for securing one end of the wire during the twisting operation comprising a pivotally movable clip, a transversely movable clip cooperating therewith to hold the wire, one of said clips being adjustably mounted so that its initial distance from its cooperating clip can be varied, a stop normally preventing movement of the transversely movable clip, and means operating to withdraw the stopv at a predetermined phase of the twisting operation.

In testimony whereof I have signed my name to this specification.

ERNEST ALBERT INGOLD.

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